PRD-3965: Undo Kettle-DS changes
PRD-3965: Undo Kettle-DS changes, Move bigdata into own module.
KettleTransformationReadHandler allowed to throw Exception
PRD-3965: Added Equals and HashCode
PRD-3965: Moved and refactored.
BigData now uses delegation instead of inheritance to hide the fact that we use kettle underneath.
KTR used is now hidden from the user as binary blob.
PRD-3965: Moved and refactored UI.
BigData factory cleaned out to embed KTR as binary blob.
PRD-3965: Deleted obsolete file.
PRD-3965: Subfloor added